#include <reg52.h>
#include <intrins.h>
#include "comm.h"



unsigned char a,b,i;
//sbit LED = P2 ^ 0;

//delay function
void delay(int a){
        int i, j;
    for (i = 0; i < a; i++) {
        for (j = 0; j < 100; j++){
            _nop_();
        }
    }




}
